Yup, it's a combination of Table Tennis (or ping pong) and Soccer; leading to the mashup name HEADIS. It was originally invented in Germany in 2006. Why? That seems to be unclear. But watch the video, it seems crazy aggressive; just people throwing their heads all over the place, flinging their bodies across the table!
The sport has around 100,000 players worldwide and hold annual competitions.
HEADIS... you think it'll take off? I'm voting with a HARD PASS!